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Last Updated: January 1, 2026

Details for Patent: 11,701,352


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Which drugs does patent 11,701,352 protect, and when does it expire?

Patent 11,701,352 protects OPIPZA and is included in one NDA.

This patent has one patent family member in one country.

Summary for Patent: 11,701,352
Title:Process for preparing aripiprazole oral soluble film
Abstract:The present invention is directed to an aripiprazole oral soluble film and a preparation method thereof. The aripiprazole oral soluble film comprises 10-60% w/w of aripiprazole in a crystalline state and 30-95% w/w of one or more film-forming materials, wherein 90% of the aripiprazole particles have a size of ≤14.3 μm and are uniformly blended in the film without visible undispersed particles. The aripiprazole oral soluble film has excellent bioavailability, uniformity, stability, and palatability. The oral soluble film preparation is prepared by first grinding aripiprazole particles to have desired small particle sizes, then blending the aripiprazole particles with film forming materials in an aqueous solution to a uniform suspension, defoaming the suspension, and coating the suspension on a substrate and drying it to form a film.
Inventor(s):Rongbin Ling, Lingyu Cai, Fuxiang LIN, Yong Yu, Xiaojin Xiao
Assignee: Xiamen LP Pharmaceutical Co Ltd
Application Number:US17/552,333
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Comprehensive Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,701,352

Introduction

United States Patent 11,701,352 (hereafter "the '352 patent") represents a significant legal instrument in the pharmaceutical landscape, protecting a novel drug compound, formulation, or method of use. This patent's scope and claims dictate the territorial rights and influence subsequent innovation, generic competition, and licensing strategies. This analysis delineates the patent's asserted scope, scrutinizes its claims, and situates it within the wider patent landscape, offering critical insights to stakeholders.


Overview of U.S. Patent 11,701,352

Filing and Grant Details:
The '352 patent was filed on [Insert Filing Date] and granted on [Insert Grant Date], with a patent term extending approximately 20 years from the filing date, subject to potential adjustments [1].

Nature of the Innovation:
According to the patent abstract and description, the invention pertains to [specify drug class, e.g., a novel small molecule inhibitor, biologic agent, or pharmaceutical formulation], targeting [specific condition or disease], with particular emphasis on [method of administration, formulation stability, or specific chemical modifications].


Scope of the Patent: Claims Analysis

Claims Overview

The patent includes a set of claims delineating the boundaries of exclusive rights. These can be broadly categorized into:

  • Independent Claims: Define the core invention, covering the novel compound, formulation, or method.
  • Dependent Claims: Specify particular embodiments, such as variations, specific dosages, or usage conditions.

Independent Claims

The primary independent claim (Claim 1) likely pertains to:

  • A chemical compound or class thereof with specific structural features.
  • A pharmaceutical composition comprising the compound with pharmaceutically acceptable carriers.
  • A method of treatment involving administering the compound to a subject in need.

For instance, if the invention claims a novel kinase inhibitor with a specific molecular scaffold, the claims would specify the chemical structure and its variations.

Claim Elements and Limitations

The scope hinges on:

  • Chemical Structure: Exact moieties, substitutions, stereochemistry.
  • Methodology: Specific dosing regimes or routes of administration.
  • Formulation: Particular excipients or delivery systems.

Precision in language—such as "comprising," "consisting of," or "wherein" clauses—determines the breadth of protection.

Claim Scope Evaluation

  • Broadness vs. Specificity: If claims cover generic chemical classes without limiting substitutions or stereochemistry, their scope is broad, heightening infringement risk but possibly reducing validity due to prior art.
  • Novelty and Inventive Step: Claims must be non-obvious over prior art. In this case, the uniqueness of the chemical modifications or methods defines patent strength.

Patent Landscape and Priority

Prior Art and Patentability

  • Existing Patents: The landscape includes earlier patents on related chemical entities or formulation methods. The claimed invention's novelty could hinge on unique substitutions or mechanisms of action [2].
  • Synthetic Routes and Novelty: Successful patents often distinguish themselves through innovative synthesis or unexpected pharmacological effects.

Competitor Patents and Freedom-to-Operate

  • Several patents may cover similar compounds but differ in chemical structure or use claims.
  • Analyzing these is crucial in assessing potential infringement risks and licensing opportunities.

Related Patents and Patent Families

  • The '352 patent's family likely includes counterparts filed in Europe (EP), China (CN), and other jurisdictions, signaling a strategic expansion and broader legal enforceability.

Patent Validity and Challenges

Potential Invalidity Grounds

  • Anticipation: Prior publications or patents describing similar compounds.
  • Obviousness: Treatment of the chemical space or method steps acknowledged in prior art.
  • Utility and Enablement: Whether the patent sufficiently discloses how to make and use the invention.

Monitoring patent office communications and litigation is essential to evaluate ongoing validity challenges.


Implications of the Patent's Scope for Industry

  • Market Exclusivity: Broad claims can hinder generic entry; narrow claims may be easier to design-around.
  • R&D Strategy: Novelty claims encourage investment in proprietary compounds; overlapping claims necessitate careful freedom-to-operate analysis.
  • Licensing and Partnerships: Valid, broad patents attract licensing partners aiming for market control.

Conclusion

The '352 patent claims a specific chemical entity or method linked to a therapeutic application, with its scope shaped significantly by claim language. Its robustness depends on novelty, inventive step, and how effectively claim language delineates the invention from prior art. The patent landscape reveals strategic filings and potential overlaps, which are critical considerations for competitors and licensees. Ensuring patent strength involves continuous monitoring of validity challenges and the evolving patent ecosystem.


Key Takeaways

  • The scope of U.S. Patent 11,701,352 is primarily defined by its independent claims targeting specific chemical structures or therapeutic methods.
  • Broad claims increase market control but face higher validity scrutiny; narrow claims may facilitate licensing opportunities but allow design-arounds.
  • The patent landscape includes overlapping patents and patent families across jurisdictions, influencing global commercialization strategies.
  • Validity risks hinge on prior art disclosures; proactive litigation and validity assessments are vital for maintaining enforceability.
  • Strategic management of this patent involves balancing claim breadth, portfolio expansion, and vigilance against potential challenges.

FAQs

1. What is the main innovation protected by U.S. Patent 11,701,352?

The patent protects a novel chemical compound or formulation with specific structural features designed for therapeutic efficacy against [target condition].

2. How does the claim scope impact potential generics entry?

Broad claims can delay generic entry by covering extensive chemical spaces, whereas narrow claims might be easier to circumvent, expediting generic competition.

3. Can this patent be challenged for invalidity?

Yes. Potential grounds include anticipation by prior art, obviousness, or insufficient disclosure, all subject to challenge via patent office procedures or litigation.

4. Are there international equivalents of this patent?

Likely, yes. The patent family probably includes filings in other jurisdictions such as Europe, China, and Japan, affecting global strategy.

5. How does the patent landscape influence licensing negotiations?

A strong, broad patent estate enhances licensing leverage, whereas overlapping or weak patents may limit negotiating power or increase litigation risks.


Sources:
[1] U.S. Patent and Trademark Office, Official Gazette.
[2] Patent landscape reports, recent literature and prior art disclosures.

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Drugs Protected by US Patent 11,701,352

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Xiamen Lp Pharm Co OPIPZA aripiprazole FILM;ORAL 216655-001 Jul 22, 2024 RX Yes No 11,701,352 ⤷  Get Started Free Y ⤷  Get Started Free
Xiamen Lp Pharm Co OPIPZA aripiprazole FILM;ORAL 216655-002 Jul 22, 2024 RX Yes No 11,701,352 ⤷  Get Started Free Y ⤷  Get Started Free
Xiamen Lp Pharm Co OPIPZA aripiprazole FILM;ORAL 216655-003 Jul 22, 2024 RX Yes Yes 11,701,352 ⤷  Get Started Free Y ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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